Finding the Fourth Proportional to 3,431,069.60, 4,734,784.68 and 1,980,716
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Solution
The fourth proportional to 3,431,069.60, 4,734,784.68 and 1,980,716 is: 2,733,335.33
Step by Step Solution
- Step 1: Write the proportion equation
3,431,069.60 : 4,734,784.68 = 1,980,716 : x - Step 2: Convert to fraction form
3,431,069.60/4,734,784.68 = 1,980,716/x - Step 3: Cross multiply
3,431,069.60x = 4,734,784.68 × 1,980,716 - Step 4: Simplify right side
3,431,069.60x = 9,378,263,772,230.88 - Step 5: Solve for x
x = 9,378,263,772,230.88/3,431,069.60 - Step 6: Final answer
x = 2,733,335.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.